I have a similar issue. After enabling bypass, the system would charge the battery up to full then continue to use grid mode, basically disabling solar input even though there's enough sunlight, thereby letting it all go to waste.
I have a beginner DIY solar setup using Solar assistant + RasPi Zero 2W + MPP 1012LV-MK. I currently have trouble with the USB connection between RasPi's USB OTG port and the MPP inverter. Every few hours or so the USB port would lose connection with the inverter, and the only way to get it...